TG,
The BMI chart is the standard calculation for weight to height ratio - according to a sliding scale you are definately within the low side of normal scale.
it works like this
weight / height2 x 705 = <18.5 underweight
18.5-25 healthy
25 + over weight
30 * obese
and as there are very few ejector seats that I know of in commercial airliners you should be ok ; )
good luck
ps. weight is in lbs. and height in inches
[This message has been edited by 40degrees (edited 10 May 2000).]